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Standards GB - Chinese national standards - Page 4541
Standards GB are Chinese national standards, which are issued by China's Standardization Administration Office (SAC).
Chinese national standards are used all over China commonly labeled as GB standards. They determine the united production requirements regarding product safety and quality .
GB standards are often modified or created according to the international standards of ISO, IEC or any other international level.
Although, they are largely harmonized, GB standards may differ from international standards .
Approximately 15% of all GB standards are obligatory and they can be identified according to the prefix GB, after which the code of the standards follows:
GB – Obligatory national standards
GB/T – Optional national standards
GB/Z – National steering technical document
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GB/T 4548.2-2003
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Glassware--Hydrolytic resistance of the interior surfaces of glass containers--Determination by flame spectrometry and classification
Standard published on 10.2.2003
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GB/T 45480-2025
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Manganese ores and concentrates—Determination of aluminium content—Photometric and gravimetric methods
Standard published on 28.3.2025
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GB/T 45481-2025
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Silicone rubber compounds—Application for medical catheters
Standard published on 28.3.2025
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GB/T 45482-2025
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General principle for confirmation accounting of comprehensive energy consumption in enterprises
Standard published on 25.4.2025
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GB/T 45483-2025
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Test method for liquid mixed fuel micro-explosion characteristics based on moving image tracking technology
Standard published on 25.4.2025
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GB/T 45484-2025
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Ships and marine technology—Bunker fuel mass flow meters on receiving vessel—Requirements
Standard published on 28.3.2025
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GB/T 45485-2025
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Ships and marine technology—Design and test requirements for small steel hatches using electrical trace heating
Standard published on 28.3.2025
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GB/T 45486-2025
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Ships and marine technology—Ballast water management systems (BWMS)—Computational physical modelling and calculations on scaling of UV reactors
Standard published on 28.3.2025
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GB/T 45487-2025
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Ships and marine technology—Marine environment protection—Specification for collecting data on ship""s fuel oil consumption
Standard published on 28.3.2025
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GB/T 45488-2025
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Ships and marine technology—Fireproof watertight hatch covers
Standard published on 28.3.2025
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